July's "secret" isn't so much a secret: he runs his business like a business, period. You pay money, he gives you the product on time, simple. So far, he seems to have the work ethics and the willingness to work with people that can help him grow his business.
Throat God Sciver, Ya Tard, and the rest run their business straight into ground by acting like jealous petty little bitches instead of businesspeople, lacking any discipline or mental fortitude to have a daily work routine and follow deadlines.